Optical reference
Celestron StarSense Explorer DX 130AZ: aperture, focal length and eyepiece fit
What the Celestron StarSense Explorer DX 130AZ measures, the magnification and true field each eyepiece produces in it, and the barrel, mount payload and camera adapter that fit.
Published specifications
Eyepiece ladder
2 pairings| Pairing | Magnification | True field |
|---|---|---|
| Tele Vue 3.5mm Nagler Type 6 in the Celestron StarSense Explorer DX 130AZ | 186x | 0.44 deg |
| Tele Vue 10mm Delos in the Celestron StarSense Explorer DX 130AZ | 65x | 1.11 deg |
The DX 130AZ is a 130 mm f/5 Newtonian with phone-guided push-to. The 650 mm focal length gives bright, wide low-power fields and demands short eyepieces for high magnification.
Because magnification is the telescope's 650 mm focal length divided by the eyepiece focal length, a 25 mm eyepiece gives 26x here and a 10 mm eyepiece gives 65x. The highest useful magnification is the published 307x, beyond which the image dims and softens without showing more detail.
The focuser takes 1.25 in eyepieces, so use 1.25 in eyepieces; a long low-power 2 in eyepiece will not fit this focuser.